Pipe-repair clamp



June 26, 1923. 1,460,224

J. W. BLAIR PIPE REPAIR CLAMP Filed Oct. 7, 1920 g 1 ITIJESSES HWE/VTUR Patented June 26, 1923.

UNITED STATES JEAN WRIGHT BLAIR, or new Yonx, n. v.

' PIBE-REPAIR CLAMP.

Application filed October '7, 1920. Serial No. 415,330. 1

To all whom it may concern: a

Be it knownthat I, JEAN W. BLAIR, a citi:

' zenof the United States, and resident oi the city of New York, borough of Manhattan,

county of New York, and State of New York, have invented anew and Improved Pipe-Repair Clamp, ofiwhich the following v is a full, clear, andexact description. j connection with pipe repair clamps, it

is a well appreciatedfact thatnumerous devices have been placed upon the market, in-

eluding a clamping structure adapted to embrace .a pipe and to retain in applied position thereon, a patch covering the rupture or opening from which the escape of fluid was to be prevented. i

. .My invention aims to provide a device of i this. nature, and more particularly to provide a certain improved construction overU. S.

i Patent No. 389,102, to W. J. Purdy, dated of suflicient length to extend around and 1 beyond a pipe, and permit the association at of a clamping membertherewith.

Obviously, where one pipe is to have a repair clamp associated therewith, and forms one of a nest of pipes, the next adjacent pipe will contact with the U shaped or body portion of the clamp, and render it exceedingly difficult to move the latter to its ap lied position.

%ith this in view, I have provided a pipe repair clamp, which more particularly aims to provide an improvedstructure over the prior patent above ident fied, and by means of which it will be possible to associate the body portion of the clamp with one of a nest of pipes irrespective of the proximity of the so next adjacent pipe.

Reference is had to the attached sheet of drawings as illustrating one practical emhowever, the body portion of the device is preferably in two sections, each of which bodiment of my invention, and in which drawings-- .i Figure 1 is a perspective vview of a repair clamp applied. to a conduit 0rv pipe. i Figure 2 is an enlarged sectional side View 1 takenaalong the line 2+2Yof Figure 1,and I i Figure 3 is a perspective view, or theparts forming the body portion of the clamp, and showing the latter disassembled In these views the .reference numeral. 5 indicatesa pipe or conduit, in which a puncturehas occurred, or other opening. 6 has been formed, which opening is to be covered so that theescape of any fluid from within the pipe or conduit is prevented. I i Referrin now more particularlyito the structure il ustratedin Figure 2,.it will be seen, that my pipe repair clamp,conveniently includes a body portion, which is preferably U eshaped incross section, and adjacent the upperends of which a pair of openings is formed. These openings maybe engaged by a bridge piece 8 formed with a screw threaded opening communicating with a screw threaded rod 9, bearing with its inner end against a shoe 10, and retaining a'patch i 11 in applied position to the opening 6.

This construction is entirely conventional, and may be subjected to any number of variations according to the needs of th clamp being constructed.

Contrary to the conventional construction,

preferably includes a straight body portion" 12 and 13 respectively, the lower ends of these body portions being curved, and upturned as has been indicated by the reference numerals 1t and 15 respectively, the curve of each conforming to that of the other, and to the exterior diameter of the pipe 5, or other member to which the clamp is to be applied. 1 i I Also contrary to the conventionalicone struction, these curved portions are con- U veniently provided with interengaging means permitting of their ready detachment and attachment, one from the other, together with a slight swinging motion of these parts while secured together, thus forming what i might be termed a separable hinged joint.

. It will be understood, in practice, that contrary to the conventional method of inserting the body portion of the device in one solidpiece, in such a manner that one of the outered'ge's of the same clears the pipe to which the patch is to be annlied, and subsequently pulling the body portion to a point at which it snugly fits the'pipe, with m improved clamp the body portions of the device are inserted from opposite sides of the pipe, and by virtue of "the separable engage inent afforded to the curved portions 14 and 15 of the body member of the clamp, by means of the tongues 16 of one curved portion engaging the opening 17 of the other, i

. patch in applied position.

Obviously by ln'ean'sof this construction it will not "be necessar to insert the -body portion of the patch to *a distance beyond the thickness of "the 'inembers forming the curved portions 14am '15, 'so'tha't the "defects *noted in the "beginning of the 'sp'e'c'ification are avoided.

Further, obviously numerous modifloa- -tions of structure might readily be resorted to without in the least departing from the sp' it of my invention, which I claim as followgu'. v z

l A pipe repair clamp including a body portion comprising a plurality of sections,

means ac'lapted "to cooperate with said sections adjacent their upper ends for retainmg the same in applied posltion, one of sald sections being formed with openings adjacent its lower end, said openings being arranged in a longitudinal series across the width of the section last mentioned, the Second of said sections being formed vwith tongues arranged in a longitudinal -.ser ie's across the width'of the section last mentioned and adjacent llZS"1OW8I,.-'8I1Cl, said tongues extending outwardly and towards the upper end "of said section.

2. A pipe. repair clani'p including aibody portion coinprisinga pflurality oi sections,

means adapted to co-operate with said'rsection's ad acent thelrfupperrends for retainmg the same in'applied position, one OfStLld sections being formed. with openings adjacent its lower end, said openings beingsan ranged in staggeredrelationship, thesecond of saidsections being forinediv-ithtong'ues adjacent its lower end, said tongues extend ing outwardly and towards the upper endof said section, and being also arrangedin 2 staggered relationship. L a

. Y-JEANWVRIIGIQIYT sens, w 

